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Finding the Fourth Proportional to 1,602,766.72, 2,211,821.94 and 877,662.28

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Solution

The fourth proportional to 1,602,766.72, 2,211,821.94 and 877,662.28 is: 1,211,176.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,602,766.72 : 2,211,821.94 = 877,662.28 : x
  2. Step 2: Convert to fraction form
    1,602,766.72/2,211,821.94 = 877,662.28/x
  3. Step 3: Cross multiply
    1,602,766.72x = 2,211,821.94 × 877,662.28
  4. Step 4: Simplify right side
    1,602,766.72x = 1,941,232,686,814.42
  5. Step 5: Solve for x
    x = 1,941,232,686,814.42/1,602,766.72
  6. Step 6: Final answer
    x = 1,211,176.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.